Home / 258,975,640.40-388,463,460.60-177,346,302.80

Finding the Fourth Proportional to 258,975,640.40, 388,463,460.60 and 177,346,302.80

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Solution

The fourth proportional to 258,975,640.40, 388,463,460.60 and 177,346,302.80 is: 266,019,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,975,640.40 : 388,463,460.60 = 177,346,302.80 : x
  2. Step 2: Convert to fraction form
    258,975,640.40/388,463,460.60 = 177,346,302.80/x
  3. Step 3: Cross multiply
    258,975,640.40x = 388,463,460.60 × 177,346,302.80
  4. Step 4: Simplify right side
    258,975,640.40x = 68,892,558,510,303,480
  5. Step 5: Solve for x
    x = 68,892,558,510,303,480/258,975,640.40
  6. Step 6: Final answer
    x = 266,019,454.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.